Add 18/15 and 90/24
1st number: 1 3/15, 2nd number: 3 18/24
18/15 + 90/24 is 99/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
18/15 = 18 × 8/15 × 8 = 144/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120 - Add the two like fractions:
144/120 + 450/120 = 144 + 450/120 = 594/120 - 594/120 simplified gives 99/20
- So, 18/15 + 90/24 = 99/20
In mixed form: 419/20
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